Control of Particle Size and Aspect Ratio of Aragonite Precipitated Calcium Carbonate on Adding Seed

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2007 Vol.44, Issue 2 Preview Page Next Page

Control of Particle Size and Aspect Ratio of Aragonite Precipitated Calcium Carbonate on Adding Seed Seed 첨가에 따른 아라고나이트 침강성탄산칼슘의 입자크기 및 종횡비 제어: 고상진, 박운경, 이승우, 한춘, 안지환
Sang-Jin Ko, Woon-Kyoung Park, Seung-Woo Lee, Choon Han and Ji-Whan Ahn

30 April 2007. pp. 153-158

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Abstract

In this study, the particle size and aspect ratio of aragonite was controlled through synthesized aragonite seed. The morphology, particle size, and aspect ratio (ration of length to diameter of the particle) of the aragonite particles were characterized with SEM (Scanning Electron Microscope). The polymorphs and the quantitative analysis were characterized with X-ray Diffractometer. First, the aragonite seed obtained from carbonation process with Mg2+ was synthesized and then the particle size and aspect ratio of aragonite was increased through the addition of previous aragonite seed. The rate of aragonite crystal growth was promoted by the increase of amounts of seed.

Keywords

Aragonite

Precipitated calcium carbonate

Seed

Carbonation process

Aspect ratio

본 연구에서는 탄산화법으로 단일상의 아라고나이트를 합성한 후 이를 seed로 사용하여 아라고나이트의 입자크기와 종횡비를 제어하였다. 합성된 아라고나이트 입자의 형상학적 특성 및 입자크기와 종횡비는 주사전자현미경을 사용하여 분석하였고 다형성과 정량분석은 X-선 회절 분석기를 사용하여 분석하였다. 0.2 mol/L Ca(OH)2, 0.6 mol/L MgCl2 혼합용액에 CO2 gas를 50 ml/min으로 주입하여 아라고나이트 seed를 합성하고 동일 조건에서 아라고나이트 seed를 첨가하고 탄산화 반응을 통해 단일상의 아라고나이트 침강성탄산칼슘을 합성한 결과, seed 양의 증가는 아라고나이트의 결정성장 속도를 촉진하므로 이를 아라고나이트 seed로 첨가하여 아라고나이트의 입자크기 및 종횡비를 향상 시킬 수 있었다. seed 양의 증가는 아라고나이트의 결정성장 속도를 촉진하였다.

키워드

아라고나이트 침강성탄산칼슘

seed

탄산화 반응

종횡비

References

안지환, 조건준, 조성백, 김상배, 김환, 2002, “석회석을 원료로 한 침강성 탄산칼슘 filler의 다형제어 기술개발(II)”, 최종보고서, 산업자원부, pp. 395-400.
유성구, 류시옥, 박영해, 류종하, 서길수, 1998, “X-선 회절로부터 탄산칼슘 결정형태의 정량분석”, 화학공학, Vol. 36, pp. 543-547.
E. Hakanen and J. Koskikallio, 1982, J. Finn. Chem. Lett., 3, 34.
J. W. Mccauley, R. Roy, 1974, “Controlled nucleation and crystal growth of various CaCO3 phase by the silica gel techique”, American Mineralogist, Vol. 59, pp. 947-963.
J. L. Wray and F. Daniels, 1957, “Precipitation of calcite and aragonite”, Journal of the American Chemical Society, Vol. 79, pp. 2031-2034.
K. Sasaki, M. Hongo, M. Tsunekawa, 1998, “Synthesis of aragonite-type of calcium carbonate from calcined scallop shell (3rd Report)”, Shigen-to-Sozai, Vol. 114, pp. 715-720.
O. Sohnel and J. W. Mullin, 1982, “Precipitation of calcite carbonate”, Journal of Crystal Growth, Vol. 60, pp. 239-250.
R. S. Dickkinson and K. M. McGrath, 2001, “Quantitative determination of binary and tertiary calcium carbonate mixtures using powder X-ray diffraction”, Analyst, Vol. 126, pp. 1118-1121.
R. W. Lahann, 1978, “A chemical model for calcite crystal growth and morphology control”, Journal of Sedimentary Petrology, Vol. 48-1, pp. 337-344.
S. Zhong, A. Mucci, 1989, “Calcite and aragonite precipitation from seawater solution of various salinities: Precipitation rates and overgrowth compositions”, Chemical Geology, Vol. 78, pp. 283-299.
V. A Juvekar and M. M. Sharma, 1973, “Absorption of CO2 in a suspension of lime”, Chemical Engineering Science, Vol. 28, pp. 825-837.
北大院･工笹木圭子, 恒川昌美, “ホタテ貝殼からのアラゴナイトの合成”, 資源素材學會秋季大會, 平成10年度.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society for Geosystem Engineering
Journal Title(Ko) :한국지구시스템공학회지
Volume : 44
No :2
Pages :153-158

[1] 안지환, 조건준, 조성백, 김상배, 김환, 2002, “석회석을 원료로 한 침강성 탄산칼슘 filler의 다형제어 기술개발(II)”, 최종보고서, 산업자원부, pp. 395-400.

[2] 유성구, 류시옥, 박영해, 류종하, 서길수, 1998, “X-선 회절로부터 탄산칼슘 결정형태의 정량분석”, 화학공학, Vol. 36, pp. 543-547.

[3] E. Hakanen and J. Koskikallio, 1982, J. Finn. Chem. Lett., 3, 34.

[4] J. W. Mccauley, R. Roy, 1974, “Controlled nucleation and crystal growth of various CaCO3 phase by the silica gel techique”, American Mineralogist, Vol. 59, pp. 947-963.

[5] J. L. Wray and F. Daniels, 1957, “Precipitation of calcite and aragonite”, Journal of the American Chemical Society, Vol. 79, pp. 2031-2034.

[6] K. Sasaki, M. Hongo, M. Tsunekawa, 1998, “Synthesis of aragonite-type of calcium carbonate from calcined scallop shell (3rd Report)”, Shigen-to-Sozai, Vol. 114, pp. 715-720.

[7] O. Sohnel and J. W. Mullin, 1982, “Precipitation of calcite carbonate”, Journal of Crystal Growth, Vol. 60, pp. 239-250.

[8] R. S. Dickkinson and K. M. McGrath, 2001, “Quantitative determination of binary and tertiary calcium carbonate mixtures using powder X-ray diffraction”, Analyst, Vol. 126, pp. 1118-1121.

[9] R. W. Lahann, 1978, “A chemical model for calcite crystal growth and morphology control”, Journal of Sedimentary Petrology, Vol. 48-1, pp. 337-344.

[10] S. Zhong, A. Mucci, 1989, “Calcite and aragonite precipitation from seawater solution of various salinities: Precipitation rates and overgrowth compositions”, Chemical Geology, Vol. 78, pp. 283-299.

[11] V. A Juvekar and M. M. Sharma, 1973, “Absorption of CO2 in a suspension of lime”, Chemical Engineering Science, Vol. 28, pp. 825-837.

[12] 北大院･工笹木圭子, 恒川昌美, “ホタテ貝殼からのアラゴナイトの合成”, 資源素材學會秋季大會, 平成10年度.

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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